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#ifndef ISCSI_THREAD_QUEUE_H
#define ISCSI_THREAD_QUEUE_H
/*
* Defines for thread sets.
*/
extern int iscsi_thread_set_force_reinstatement(struct iscsi_conn *);
extern int iscsi_allocate_thread_sets(u32);
extern void iscsi_deallocate_thread_sets(void);
extern void iscsi_activate_thread_set(struct iscsi_conn *, struct iscsi_thread_set *);
extern struct iscsi_thread_set *iscsi_get_thread_set(void);
extern void iscsi_set_thread_clear(struct iscsi_conn *, u8);
extern void iscsi_set_thread_set_signal(struct iscsi_conn *, u8);
extern int iscsi_release_thread_set(struct iscsi_conn *);
extern struct iscsi_conn *iscsi_rx_thread_pre_handler(struct iscsi_thread_set *);
extern struct iscsi_conn *iscsi_tx_thread_pre_handler(struct iscsi_thread_set *);
extern int iscsi_thread_set_init(void);
extern void iscsi_thread_set_free(void);
extern int iscsi_target_tx_thread(void *);
extern int iscsi_target_rx_thread(void *);
#define TARGET_THREAD_SET_COUNT 4
#define ISCSI_RX_THREAD 1
#define ISCSI_TX_THREAD 2
#define ISCSI_RX_THREAD_NAME "iscsi_trx"
#define ISCSI_TX_THREAD_NAME "iscsi_ttx"
#define ISCSI_BLOCK_RX_THREAD 0x1
#define ISCSI_BLOCK_TX_THREAD 0x2
#define ISCSI_CLEAR_RX_THREAD 0x1
#define ISCSI_CLEAR_TX_THREAD 0x2
#define ISCSI_SIGNAL_RX_THREAD 0x1
#define ISCSI_SIGNAL_TX_THREAD 0x2
/* struct iscsi_thread_set->status */
#define ISCSI_THREAD_SET_FREE 1
#define ISCSI_THREAD_SET_ACTIVE 2
#define ISCSI_THREAD_SET_DIE 3
#define ISCSI_THREAD_SET_RESET 4
#define ISCSI_THREAD_SET_DEALLOCATE_THREADS 5
/* By default allow a maximum of 32K iSCSI connections */
#define ISCSI_TS_BITMAP_BITS 32768
struct iscsi_thread_set {
/* flags used for blocking and restarting sets */
int blocked_threads;
/* flag for creating threads */
int create_threads;
/* flag for delaying readding to inactive list */
int delay_inactive;
/* status for thread set */
int status;
/* which threads have had signals sent */
int signal_sent;
/* flag for which threads exited first */
int thread_clear;
/* Active threads in the thread set */
int thread_count;
/* Unique thread ID */
u32 thread_id;
/* pointer to connection if set is active */
struct iscsi_conn *conn;
/* used for controlling ts state accesses */
spinlock_t ts_state_lock;
/* used for restarting thread queue */
struct completion rx_restart_comp;
/* used for restarting thread queue */
struct completion tx_restart_comp;
/* used for normal unused blocking */
struct completion rx_start_comp;
/* used for normal unused blocking */
struct completion tx_start_comp;
/* OS descriptor for rx thread */
struct task_struct *rx_thread;
/* OS descriptor for tx thread */
struct task_struct *tx_thread;
/* struct iscsi_thread_set in list list head*/
struct list_head ts_list;
struct semaphore ts_activate_sem;
};
#endif /*** ISCSI_THREAD_QUEUE_H ***/
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